Orthodontia-pliers.



C. F. MONTAG.

ORTHODONTIA PLIEBS.

APPLIoATIoN Hum 0011.23, 191s.

1,1031606 Patented July 14, 19111 STATES FATEN'F @FFQE CHRISTOPH F.MONTAG, OF BLUE ISLAND, L-LINOIS.

ORTHODONTIA-PLIERS.

treason.

T0 all whom t may concern Be it known that l, CHRISTOPH F. MoN- 'rAG, acitizen of the United States, residing at Blue island, in the county ofCook and State of Illinois, have invented a new and useful improvementin Orthodontia-Fliers, of which the following is a specification.

My invention relates to certain new and useful improvements inorthodontia pliers, and is fully described and explained in thespecication and shown in the accompanying drawings, in which- Figure 1is a side elevation of a pair of pliers for completing the bends in anort-hodontia arch; Fig. 2 is a view of said pliers in the same directionas Fig. 1, but showing the parts partly in section; Fig. 3 is an endview of the pliers about to operate; Fig. 4 is a similar view after theyhave been operated, and Fig. 5 is a perspective view of an orthodontiaarch, showing the work done by the pliers.

lt will be understood that the initial bend in the orthodontia archillustrated in Fig. 5 is made with a pair of pliers of simple andconvenient form, and didering but slightly from some devices which havebeen used for a similar purpose.

The pair of pliers which forms the subject of my invention takes thewire, having the initial bend therein, and forms, at the two sides ofsaid first bend, two additional ones extending in the oppositedirection, so that when completed, the main part of the wire remains inthe same straight line, but it .has in it two complete bends out of andback into that line. 17 indicates one of the jaws of said pliers. Thisjaw has two fiat parts 18, extending outward laterally, and which may besaid to constitute the main plane of the jaw. 19 are two ribs whichproject upward from said main plane, leaving between them a groove 20.This groove is open at the tip of the jaw as shown in Figs. 7 and 8, butat its rear is an upwardly-projecting piece 21, from which extendsforward a finger 22 adapted to lie inthe rst bend. The ribs 19 arenotched at 23 for the purpose of positioning the wire. The wire, afterhaving been provided with the first bend, is simply slid into position,the first bend lying in the groove and under the finger, as shown. 24 isthe opposite jaw and it simply has two flanges 25, notched at 26, tohold the wire firmly in position.

Specification of Letters Patent.

Application filed Uetober 23, 1913.

Patented July 14, 1914.

Serial No. 796,950.

When the jaws are brought together the flanges 25 pass down outside theribs 19, putting two additional bends in the wire, and as they pinch thewires bet-weon their edges and the outwardly-projecting-y part 18 of themain plane of the first-mentioned jaw, they turn the wire back into astraight line, such as is required for the purpose intended. By the useof the two devices working successively upon the wires, it is very easyto place exactly the bends required in a wire without any difficulty.The bends are of perfectly even size and they necessarily lie in thesame plane, so that the wire is in the most convenient possibleposition. Making the bends of a single standard size is of considerableimportance in work of this character, because it enables the dentist toproduce exactly the desired amount of spring-tension or compression inhis arch. The adjustingscrew, or nut, at the end of the arch can beturned until the bends have been contracted to a pre-determined extent.It is then knownl definitely to the operator that the expansion of thesebends to their original, known size will move the teeth a perfectlydefinite amount, and when the bends are of a predetermined size, andalways the same, the dentist who desires a given amount of movement ofthe teeth, has only to adjust his arch until his bends are contracted toa given size. He then knows that the natural expansion of the bends willnecessarily move the teeth just the amount required.

i realize that considerable variation is possible in the det-ails of thepresent construction without departing from the spirit thereof, and I donot intend therefore to limit myself thereto, except as pointed out inthe following claims, in which my intention is to claim all the noveltyinherent in the construction as broadly as is permitted by the state ofthe art.

What li claim as new and desire to secure by Letters Patent, is c 1. Inorthodontia pliers, a jaw having two ribs with a groove therebetween toreceive a bend in the wire, a finger in said groove, and a second jawhaving two ribs to pass outside the ribs on the first jaw, for thepurpose set forth.

2. lln orthodontia pliers, a jaw having two straddle thev ribsl of thefirst jew, for the purpose set forth.

3. In Orthodontie. p1iers,' a. jaw having two ribs with L groovetherebetween toreceive a. bend in the wire, and e second jaw having tworibs to `pass outside the ribs on the first jew, each of seid jawshaving lateral engaging partsy to turn the ends of the wire into line,for the purpose set forth. Y f 4., In Orthodontie pliers, a. jaw havingtwo ribs with' a groove therebetween to receive a "bend in the wire,stinger in said groove and pacopiee of this patent may be obtained forve cents each, by addressing the Gommssioe'of'ratents,

Washington, D. G.

out of Contact with the walls which lie in seid bend, and a. second j awhaving two ribs to straddie the ribs of the first jaw, each `of saidjaws having laterai'engaging parts to turn the ends of the wire intoline, for the purpose set forth. v Y

In testimony whereof I have hereunto set my bend October, 1913.

CHRISTOPH F. MONTAG. In presence of twosubscribing witnesses:

A. C. FISCHER'. Y 0., C. Avisos.

